Updates language model on iOS.

components/translate/ios/browser/language_detection_controller_unittest.mm

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "components/translate/ios/browser/language_detection_controller.h"
 
 #include "base/mac/bind_objc_block.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/prefs/pref_registry_simple.h"
@@ skipping 41 matching lines @@
   std::unique_ptr<LanguageDetectionController> controller_;
 };
 
 }  // namespace
 
 // Tests that OnTextCaptured() correctly handles messages from the JS side and
 // informs the driver.
 TEST_F(LanguageDetectionControllerTest, OnTextCaptured) {
   const std::string kRootLanguage("en");
   const std::string kContentLanguage("fr");
+  const std::string kUndefined("und");
 
   __block bool block_was_called = false;
   auto subscription =
       controller()->RegisterLanguageDetectionCallback(base::BindBlockArc(
           ^(const LanguageDetectionController::DetectionDetails& details) {
             block_was_called = true;
             EXPECT_EQ(kRootLanguage, details.html_root_language);
             EXPECT_EQ(kContentLanguage, details.content_language);
+            EXPECT_FALSE(details.is_cld_reliable);
+            EXPECT_EQ(kUndefined, details.cld_language);
           }));
 
   base::DictionaryValue command;
   command.SetString("command", "languageDetection.textCaptured");
   command.SetBoolean("translationAllowed", true);
   command.SetInteger("captureTextTime", 10);
   command.SetString("htmlLang", kRootLanguage);
   command.SetString("httpContentLanguage", kContentLanguage);
   controller()->OnTextCaptured(command, GURL("http://google.com"), false);
 
   EXPECT_TRUE(block_was_called);
 }
 
 }  // namespace translate